How popular is Izik?

Izik is an unusual first name for men. Izik is an unusual surname too for all people. (2000 U.S. Census)

Which version is better?

with its source form and related boy names. Prominent variation forms of Izik (unlisted) are Isaac(#31 a year ago), Issac(#562), Zack(#1217), Izaac(#1366), Isaak(#1412), Isa(#1496), Ike(#1676), Izaak(#1712), Zak, Isak, Isac and Izak. Adoption of these forms of Izik was common in the year 2012 (adoption of 0.6%) and has remained as widespread to this day (adoption 0.6%, down 4%), but with the version Ike becoming somewhat dated. Isaac has been the most well-known version. (Top 2000 Names, 2015)